Disc Spring
Disc Spring
A washer-shaped spring (also called Belleville washer). Stacks for high force in a small space.
Disc springs are conical washers that flatten under load. Stacked in series or parallel, they deliver enormous force in a tiny axial space — far more than any helical spring of the same size could provide. Used in bolt preload, clutch packs, and any application that needs concentrated force in a slim profile.
We supply standard disc springs and stack assemblies.
Specifications
| Outer diameter | 6mm – 200mm |
| Inner diameter | 3mm – 100mm |
| Thickness | 0.2mm – 14mm |
| Material | Chrome vanadium (die-spring grade), stainless |
| Stack assembly | series, parallel, or mixed — specified per application |
| Lead time | Stock items 2–5 days · production runs 2–3 weeks |
| MOQ | None — single piece available |
Common applications
- Bolt preload and gasket compression
- Clutch packs in transmissions
- Vibration damping
- Safety valves
- Tooling preload
Materials & finishes
Materials & finishes
Stainless spring steel and high-carbon spring steel for most spring types. Chrome silicon and chrome vanadium for die-spring grades. Polyurethane elastomer for urethane springs. Finishes available: zinc plating, black oxide, phosphate, passivated stainless.
Dimensions & tolerances
Dimensions & tolerances
Wire diameter range: 0.1mm – 10mm. Tolerance: ±0.05mm wire, ±1% free length, ±10% load. Squareness: 3° or less. Custom geometries to drawing — send a sample or a sketch.
Lead time & ordering
Lead time & ordering
Walk-in single-piece custom: often within an hour at our Valenzuela factory for standard geometries. Stock items: 2–5 days. Production runs: 1–3 weeks. No minimum order — single piece available.
QC & documentation
QC & documentation
Every batch is sample-tested before pack-out. Mill certificates, dimensional reports, and full material traceability available on request — at no extra charge for production runs above 500 pieces.

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Have a sample?
Get directionsBring it to our factory in Valenzuela. Walk-ins welcome Mon–Sat 08:30–16:00 — we'll quote on the spot for standard work.
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2–5 days standard
Most stock springs ship in 2–5 days. Custom runs in 1–3 weeks. Same-day pickup at our Valenzuela factory available.
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Material certs included
Mill certificates, dimensional reports, and material traceability documentation provided at no charge for production runs above 500 pieces.